South Korea reclaimed top spot in terms of the ratio of R&D spending to GDP in 2017,... surpassing that of Israel.<br />Citing the OECD's Main Science and Technology Indicators,... the Korea Institute of Science and Technology Evaluation and Planning and the Ministry of Science and ICT explained that South Korea's R&D intensity,... the expenditure on R&D as a percentage to the GDP stood at four-point-five-five percent. <br />Israel had the second highest R&D intensity, followed by Switzerland. <br />